311544042 has 16 divisors (see below), whose sum is σ = 644574240. Its totient is φ = 100266992.

The previous prime is 311544041. The next prime is 311544061. The reversal of 311544042 is 240445113.

It is not an unprimeable number, because it can be changed into a prime (311544041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 895068 + ... + 895415.

It is an arithmetic number, because the mean of its divisors is an integer number (40285890).

Almost surely, 2^311544042 is an apocalyptic number.

311544042 is an abundant number, since it is smaller than the sum of its proper divisors (333030198).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

311544042 is a wasteful number, since it uses less digits than its factorization.

311544042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1790517.

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 311544042 is about 17650.6102444080. The cubic root of 311544042 is about 677.9117322287.

Adding to 311544042 its reverse (240445113), we get a palindrome (551989155).

The spelling of 311544042 in words is "three hundred eleven million, five hundred forty-four thousand, forty-two".